"What?" Adrian was taken aback.

Holden glared at him, signaling for him to lower his voice. Adrian nodded.

Holden said, "I discovered that Sadie had a big plastic surgery in a cosmetic hospital. That is to say, she now looks completely different from before."

"And?" Adrian asked, still utterly baffled. "How did you make the connection between Sadie and Helen then?"

"A while back, Ariana and I paid a visit to the Anderson mansion. There, we accidentally discovered the medical documents related to the sanatorium where Helen's mother used to stay. We later went to this sanatorium to look for Marianna, but we were told that she had been transferred before we got there." Holden shifted his lollipop to the other side of his mouth. "We managed to get the contact number of the person who processed the transfer. It turns out that it was handled by Zayden's assistant, and the time of the transfer aligns with the period when Zayden and Sadie were together."